CA2912477C - Methodes et dispositifs de codage et decodage de signal - Google Patents

Methodes et dispositifs de codage et decodage de signal Download PDF

Info

Publication number
CA2912477C
CA2912477C CA2912477A CA2912477A CA2912477C CA 2912477 C CA2912477 C CA 2912477C CA 2912477 A CA2912477 A CA 2912477A CA 2912477 A CA2912477 A CA 2912477A CA 2912477 C CA2912477 C CA 2912477C
Authority
CA
Canada
Prior art keywords
vectors
subbands
spectral coefficients
group
quantized
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CA2912477A
Other languages
English (en)
Other versions
CA2912477A1 (fr
Inventor
Zexin Liu
Lei Miao
Chen Hu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of CA2912477A1 publication Critical patent/CA2912477A1/fr
Application granted granted Critical
Publication of CA2912477C publication Critical patent/CA2912477C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/002Dynamic bit allocation
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/032Quantisation or dequantisation of spectral components

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

On décrit, dans les modes de réalisation de l'invention, un procédé et un dispositif de codage et de décodage de signal. Le procédé consiste: à déterminer, en fonction du nombre de bits disponibles et d'une première valeur de seuil de saturation i, un nombre k de sous-bandes à coder, i étant un nombre positif et k un nombre entier positif; à sélectionner k sous-bandes parmi toutes les sous-bandes, en fonction de l'enveloppe quantifiée de chaque sous-bande ou en fonction d'un modèle psychoacoustique; à mettre en oeuvre une opération de codage en un passage sur les coefficients spectraux des k sous-bandes. Dans les modes de réalisation de l'invention, un nombre k de sous-bandes à coder est déterminé en fonction du nombre de bits disponibles et d'une première valeur de seuil de saturation, et k sous-bandes sont sléectionnées pour coder des éléments parmi lesdites plusieurs sous-bandes plutôt que de coder l'intégralité de la bande de fréquence, ce qui réduit le nombre de trous spectraux dans les signaux à décoder et augmente donc la qualité sonore des signaux de sortie.
CA2912477A 2013-07-01 2014-06-25 Methodes et dispositifs de codage et decodage de signal Active CA2912477C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201310271015.7A CN104282312B (zh) 2013-07-01 2013-07-01 信号编码和解码方法以及设备
CN201310271015.7 2013-07-01
PCT/CN2014/080682 WO2015000373A1 (fr) 2013-07-01 2014-06-25 Procédé de codage et de décodage de signal et dispositif associé

Publications (2)

Publication Number Publication Date
CA2912477A1 CA2912477A1 (fr) 2015-01-08
CA2912477C true CA2912477C (fr) 2019-04-09

Family

ID=52143091

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2912477A Active CA2912477C (fr) 2013-07-01 2014-06-25 Methodes et dispositifs de codage et decodage de signal

Country Status (18)

Country Link
US (2) US10152981B2 (fr)
EP (1) EP2988299A4 (fr)
JP (1) JP6289627B2 (fr)
KR (2) KR20160003264A (fr)
CN (2) CN108198564B (fr)
AU (1) AU2014286765B2 (fr)
BR (1) BR112015030852A2 (fr)
CA (1) CA2912477C (fr)
CL (1) CL2015003765A1 (fr)
HK (1) HK1206136A1 (fr)
IL (1) IL242498B (fr)
MX (1) MX359502B (fr)
MY (1) MY163240A (fr)
NZ (1) NZ714187A (fr)
RU (1) RU2633097C2 (fr)
SG (1) SG11201509391RA (fr)
UA (1) UA113041C2 (fr)
WO (1) WO2015000373A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105096957B (zh) 2014-04-29 2016-09-14 华为技术有限公司 处理信号的方法及设备
CN112751953A (zh) * 2019-10-31 2021-05-04 北京小米移动软件有限公司 电子设备、控制方法、装置及存储介质
CN113140225B (zh) * 2020-01-20 2024-07-02 腾讯科技(深圳)有限公司 语音信号处理方法、装置、电子设备及存储介质
CN117476013A (zh) * 2022-07-27 2024-01-30 华为技术有限公司 音频信号的处理方法、装置、存储介质及计算机程序产品

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5235671A (en) 1990-10-15 1993-08-10 Gte Laboratories Incorporated Dynamic bit allocation subband excited transform coding method and apparatus
KR100188912B1 (ko) * 1992-09-21 1999-06-01 윤종용 서브밴드코딩의 비트재할당 방법
KR100269213B1 (ko) 1993-10-30 2000-10-16 윤종용 오디오신호의부호화방법
KR0144011B1 (ko) * 1994-12-31 1998-07-15 김주용 엠펙 오디오 데이타 고속 비트 할당 및 최적 비트 할당 방법
JP3519859B2 (ja) * 1996-03-26 2004-04-19 三菱電機株式会社 符号器及び復号器
JP3235543B2 (ja) 1997-10-22 2001-12-04 松下電器産業株式会社 音声符号化/復号化装置
US6148283A (en) 1998-09-23 2000-11-14 Qualcomm Inc. Method and apparatus using multi-path multi-stage vector quantizer
JP2005010337A (ja) * 2003-06-18 2005-01-13 Sony Corp 音声信号圧縮方法及び音声信号圧縮装置
PL1875463T3 (pl) * 2005-04-22 2019-03-29 Qualcomm Incorporated Układy, sposoby i urządzenie do wygładzania współczynnika wzmocnienia
CN101273404B (zh) * 2005-09-30 2012-07-04 松下电器产业株式会社 语音编码装置以及语音编码方法
EP1989707A2 (fr) * 2006-02-24 2008-11-12 France Telecom Procede de codage binaire d'indices de quantification d'une enveloppe d'un signal, procede de decodage d'une enveloppe d'un signal et modules de codage et decodage correspondants
JP4396683B2 (ja) * 2006-10-02 2010-01-13 カシオ計算機株式会社 音声符号化装置、音声符号化方法、及び、プログラム
US20100017199A1 (en) * 2006-12-27 2010-01-21 Panasonic Corporation Encoding device, decoding device, and method thereof
CN101105940A (zh) * 2007-06-27 2008-01-16 北京中星微电子有限公司 音频编解码的量化方法、反变换方法及音频编解码装置
CN101377926B (zh) * 2007-08-31 2012-06-27 瑞昱半导体股份有限公司 加速量化循环程序功能的音频编码方法
KR20090122142A (ko) * 2008-05-23 2009-11-26 엘지전자 주식회사 오디오 신호 처리 방법 및 장치
WO2010031003A1 (fr) * 2008-09-15 2010-03-18 Huawei Technologies Co., Ltd. Addition d'une seconde couche d'amélioration à une couche centrale basée sur une prédiction linéaire à excitation par code
WO2010042024A1 (fr) * 2008-10-10 2010-04-15 Telefonaktiebolaget Lm Ericsson (Publ) Codage audio multicanal conservant l'énergie
CN101494054B (zh) * 2009-02-09 2012-02-15 华为终端有限公司 一种音频码率控制方法及系统
EP2398017B1 (fr) * 2009-02-16 2014-04-23 Electronics and Telecommunications Research Institute Procédé de codage/décodage de signaux audio par sinusoidal codage adaptatif et dispositif correspondant
CN101853663B (zh) 2009-03-30 2012-05-23 华为技术有限公司 比特分配方法、编码装置及解码装置
FR2947944A1 (fr) * 2009-07-07 2011-01-14 France Telecom Codage/decodage perfectionne de signaux audionumeriques
US8380524B2 (en) * 2009-11-26 2013-02-19 Research In Motion Limited Rate-distortion optimization for advanced audio coding
CN102081927B (zh) 2009-11-27 2012-07-18 中兴通讯股份有限公司 一种可分层音频编码、解码方法及系统
EP2362375A1 (fr) 2010-02-26 2011-08-31 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Dispositif et procédé de modification d'un signal audio par mise en forme de son envelope
WO2011132368A1 (fr) 2010-04-19 2011-10-27 パナソニック株式会社 Dispositif de codage, dispositif de décodage, procédé de codage et procédé de décodage
BR112013016350A2 (pt) * 2011-02-09 2018-06-19 Ericsson Telefon Ab L M codificação/decodificação eficaz de sinais de áudio
KR102053900B1 (ko) 2011-05-13 2019-12-09 삼성전자주식회사 노이즈 필링방법, 오디오 복호화방법 및 장치, 그 기록매체 및 이를 채용하는 멀티미디어 기기
RU2464649C1 (ru) * 2011-06-01 2012-10-20 Корпорация "САМСУНГ ЭЛЕКТРОНИКС Ко., Лтд." Способ обработки звукового сигнала

Also Published As

Publication number Publication date
MX359502B (es) 2018-09-26
CA2912477A1 (fr) 2015-01-08
US20160111104A1 (en) 2016-04-21
CN104282312A (zh) 2015-01-14
WO2015000373A1 (fr) 2015-01-08
CN108198564A (zh) 2018-06-22
CL2015003765A1 (es) 2016-09-23
EP2988299A4 (fr) 2016-05-25
RU2633097C2 (ru) 2017-10-11
AU2014286765B2 (en) 2017-03-02
EP2988299A1 (fr) 2016-02-24
KR20160003264A (ko) 2016-01-08
SG11201509391RA (en) 2015-12-30
BR112015030852A2 (pt) 2017-07-25
CN108198564B (zh) 2021-02-26
CN104282312B (zh) 2018-02-23
JP6289627B2 (ja) 2018-03-14
US10789964B2 (en) 2020-09-29
RU2015156053A (ru) 2017-08-07
US20190057706A1 (en) 2019-02-21
NZ714187A (en) 2017-01-27
MX2015017743A (es) 2016-04-04
UA113041C2 (uk) 2016-11-25
IL242498B (en) 2021-05-31
MY163240A (en) 2017-08-30
AU2014286765A1 (en) 2015-12-03
HK1206136A1 (en) 2015-12-31
US10152981B2 (en) 2018-12-11
JP2016527546A (ja) 2016-09-08
KR20170089982A (ko) 2017-08-04

Similar Documents

Publication Publication Date Title
US10789964B2 (en) Dynamic bit allocation methods and devices for audio signal
EP2863388B1 (fr) Procédé et dispositif d'attribution de bits pour signal audio
JP6121551B2 (ja) オーディオ信号のビットを割り当てる方法及び装置
JP2017138616A (ja) オーディオ信号符号化及び復号化方法並びにオーディオ信号符号化及び復号化装置
RU2702265C1 (ru) Способ и устройство обработки сигналов

Legal Events

Date Code Title Description
EEER Examination request

Effective date: 20151113